CN104041090B - Session restoration methods, equipment and system - Google Patents

Session restoration methods, equipment and system Download PDF

Info

Publication number
CN104041090B
CN104041090B CN201280002811.4A CN201280002811A CN104041090B CN 104041090 B CN104041090 B CN 104041090B CN 201280002811 A CN201280002811 A CN 201280002811A CN 104041090 B CN104041090 B CN 104041090B
Authority
CN
China
Prior art keywords
message
pcef
session
pcrf
pcc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201280002811.4A
Other languages
Chinese (zh)
Other versions
CN104041090A (en
Inventor
何光伟
张静
卿华
王毓芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201811392511.7A priority Critical patent/CN109450655A/en
Publication of CN104041090A publication Critical patent/CN104041090A/en
Application granted granted Critical
Publication of CN104041090B publication Critical patent/CN104041090B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/142—Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0893—Assignment of logical groups to network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1403—Architecture for metering, charging or billing
    • H04L12/1407—Policy-and-charging control [PCC] architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
    • H04L41/0816—Configuration setting characterised by the conditions triggering a change of settings the condition being an adaptation, e.g. in response to network events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0894—Policy-based network configuration management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66—Policy and charging system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The present invention provides a kind of session restoration methods, equipment and system.This method includes that standby PCRF receives the CCR-U message that PCEF is sent, and the CCR-U message is that the PCEF is sent after determination needs session updates；The standby PCRF carries out PCC strategic decision-making according to the CCR-U message reproduction session.The embodiment of the present invention can reduce Signalling exchange expense, improve the signaling processing ability of standby PCRF.

Description

Session recovery method, device and system
Technical Field
The present invention relates to communications technologies, and in particular, to a method, a device, and a system for session recovery.
Background
Under a Policy and Charging Control (PCC) architecture, a Packet Switching (PS) network can detect different traffic flows, and perform Quality of service (QoS) Control and Charging statistics on the traffic flows. The PCC system includes a Policy and Charging Enforcement Function (PCEF) and a Policy and Charging Rule Function (PCRF), and an interface between the PCEF and the PCRF is a Gx interface. In order to improve the reliability of the Gx interface, a PCRF primary/standby disaster recovery composition mode is usually adopted in actual deployment. When a user is activated, a main PCRF is preferentially selected to establish a session, and if the main PCRF is unavailable, a standby PCRF is selected; when the user updates and deactivates, the PCRF selected during activation is preferentially used, and if the PCRF selected during activation is unavailable, a Gx Failover (Failover) process is triggered to select another PCRF.
The main PCRF and the standby PCRF are usually located at different geographical locations, and in the prior art, a real-time hot backup manner is adopted between the main PCRF and the standby PCRF, for example, real-time signaling interaction is required between the main PCRF and the standby PCRF to ensure data consistency between network elements.
But real-time hot standby may increase signaling interaction, thereby affecting signaling processing capability.
Disclosure of Invention
In view of this, embodiments of the present invention provide a session recovery method, device, and system, so as to solve the problem in the prior art that signaling processing capability is poor due to real-time signaling interaction required between a primary PCRF and a secondary PCRF.
In a first aspect, a session recovery method is provided, including:
a standby PCRF receives a CCR-U message sent by a PCEF, wherein the CCR-U message is sent by the PCEF after the PCEF determines that a session needs to be updated;
and the standby PCRF reestablishes a session according to the CCR-U message and carries out PCC policy decision.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the CCR-U message includes user information and an original PCC rule, where the original PCC rule is sent by a primary PCRF to a PCEF in an IP-CAN session initial establishment procedure or an IP connectivity access network IP-CAN session update procedure, and the performing a PCC policy decision includes:
determining the original PCC rule as a PCC rule obtained after PCC strategy decision; or,
and obtaining the PCC rule according to the user information and the subscription information.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, when the PCC rule obtained by the standby PCRF is a new PCC rule different from the original PCC rule, the method further includes:
and the standby PCRF sends a credit control response updating CCA-U message to the PCEF, wherein the CCA-U message contains the new PCC rules, so that the PCEF performs charging and policy control according to the new PCC rules.
With reference to the first aspect, in a third possible implementation manner of the first aspect, the CCR-U message includes user information, and the performing a PCC policy decision includes: obtaining a PCC rule according to the user information and the subscription information, and obtaining session recovery indication information according to configuration information, wherein the session recovery indication information is used for indicating the PCEF to keep or modify the original bearer and the original strategy;
the method further comprises the following steps:
and the standby PCRF sends a CCA-U message to the PCEF, wherein the CCA-U message contains the session recovery indication information.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, when the session recovery indication information is used to indicate the PCEF to modify an original bearer and a policy, the CCA-U message further includes a PCC rule obtained by the standby PCRF, so that after receiving the CCA-U message, the PCEF deactivates all the dedicated bearers and replaces the original PCC rule on a default bearer with the PCC rule obtained by the standby PCRF.
In a second aspect, a session recovery method is provided, including:
the PCEF determines that a session update is required;
and the PCEF sends a CCR-U message to the standby PCRF, so that the standby PCRF reestablishes a session according to the CCR-U message and carries out PCC policy decision.
With reference to the second aspect, in a first possible implementation manner of the second aspect, the method further includes:
the PCEF receives an original PCC rule sent by a main PCRF in an initial establishment process of an IP-CAN session of an IP connection access network or an updating process of the IP-CAN session;
the PCEF sends a CCR-U message to a standby PCRF, so that the standby PCRF reestablishes a session according to the CCR-U message and carries out PCC policy decision, and the method comprises the following steps:
and the PCEF sends a CCR-U message to the standby PCRF, wherein the CCR-U message comprises user information and the original PCC rule, so that the standby PCRF rebuilds a session according to the user information, and determines the original PCC rule as the PCC rule after the PCC policy decision, or obtains the PCC rule according to the user information and subscription information.
With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, when the obtained PCC rule of the standby PCRF is different from the original PCC rule of the PCEF, the method further includes:
and the PCEF receives a credit control response updating CCA-U message sent by the standby PCRF, wherein the CCA-U message contains the PCC rules obtained by the standby PCRF, and carries out charging and policy control according to the PCC rules obtained by the standby PCRF.
With reference to the second aspect, in a third possible implementation manner of the second aspect, the sending, by the PCEF, a CCR-U message to the standby PCRF, so that the standby PCRF reconstructs a session according to the CCR-U message and performs a PCC policy decision, includes:
the PCEF sends a CCR-U message to a standby PCRF, wherein the CCR-U message comprises user information, so that the standby PCRF rebuilds a session according to the user information, obtains a PCC rule according to the user information and subscription information, and obtains session recovery indication information according to configuration information, wherein the session recovery indication information is used for indicating the PCEF to keep or modify original load and strategies;
the method further comprises the following steps:
and the PCEF receives a CCA-U message sent by the standby PCRF, wherein the CCA-U message contains session recovery indication information.
With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, when the session recovery indication information is used to indicate that the PCEF modifies an original bearer and a policy, the CCA-U message further includes a PCC rule obtained by the backup PCRF, and the method further includes:
and after receiving the CCA-U message, the PCEF deactivates all the special bearers and replaces the original PCC rules on the default bearer with the PCC rules obtained by the standby PCRF.
In a third aspect, a session recovery device is provided, including:
the receiving module is used for receiving the CCR-U message sent by the PCEF;
and the processing module is used for reconstructing a session according to the CCR-U message and making a PCC strategy decision.
With reference to the third aspect, in a first possible implementation manner of the third aspect, the CCR-U message includes user information and an original PCC rule, where the original PCC rule is sent by a primary PCRF to a PCEF in an IP connectivity access network IP-CAN session initial establishment procedure or an IP-CAN session update procedure, and the processing module is specifically configured to:
determining the original PCC rule as a PCC rule obtained after PCC strategy decision; or,
and obtaining the PCC rule according to the user information and the subscription information.
With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, when the PCC rule obtained by the standby PCRF is a new PCC rule different from the original PCC rule, the apparatus further includes:
a sending module, configured to send a credit control response update CCA-U message to the PCEF, where the CCA-U message includes the new PCC rule, so that the PCEF performs charging and policy control according to the new PCC rule.
With reference to the third aspect, in a third possible implementation manner of the third aspect, the CCR-U message includes user information, and the processing module is specifically configured to: obtaining a PCC rule and session recovery indication information according to the user information and the subscription information, wherein the session recovery indication information is used for indicating the PCEF to keep or modify the original load and strategy; the apparatus further comprises:
a sending module, configured to send a CCA-U message to the PCEF, where the CCA-U message includes the session recovery indication information.
With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, when the session recovery indication information is used to indicate that the PCEF modifies an original bearer and a policy, the sending module is specifically configured to:
and sending a CCA-U message to the PCEF, wherein the CCA-U message comprises the session recovery indication information and the PCC rules obtained by the standby PCRF, so that after the PCEF receives the CCA-U message, all the special bearers are deactivated, and the PCC rules obtained by the standby PCRF are used for replacing the original PCC rules on the default bearer.
In a fourth aspect, a session recovery device is provided, including:
the determining module is used for determining that session updating is needed;
and the sending module is used for sending the CCR-U message to the standby PCRF so that the standby PCRF can reestablish a session and carry out PCC policy decision according to the CCR-U message.
With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the method further includes:
the system comprises a first receiving module, a second receiving module and a third receiving module, wherein the first receiving module is used for receiving an original PCC rule sent by a main PCRF in an IP connection access network IP-CAN session initial establishment process or an IP-CAN session updating process;
the sending module is specifically configured to: and sending a CCR-U message to a standby PCRF, wherein the CCR-U message comprises user information and the original PCC rule, so that the standby PCRF reconstructs a session according to the user information, determines the original PCC rule as the PCC rule after the PCC policy decision, or obtains the PCC rule according to the user information and subscription information.
With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, when the obtained PCC rule of the standby PCRF is different from the original PCC rule of the PCEF, the apparatus further includes:
a third receiving module, configured to receive a CCA-U message updated by a credit control response sent by the standby PCRF, where the CCA-U message includes the PCC rule obtained by the standby PCRF, and perform charging and policy control according to the PCC rule obtained by the standby PCRF.
With reference to the fourth aspect, in a third possible implementation manner of the fourth aspect, the sending module is specifically configured to:
sending a CCR-U message to a standby PCRF, wherein the CCR-U message comprises user information, so that the standby PCRF rebuilds a session according to the user information, obtains a PCC rule according to the user information and subscription information, and obtains session recovery indication information according to configuration information, wherein the session recovery indication information is used for indicating the PCEF to keep or modify original load and strategies;
the apparatus further comprises:
and a fourth receiving module, configured to receive a CCA-U message sent by the standby PCRF, where the CCA-U message includes session recovery indication information.
With reference to the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, when the session recovery indication information is used to indicate the PCEF to modify an original bearer and a policy, the CCA-U message further includes a PCC rule obtained by the standby PCRF, and the apparatus further includes:
and the processing module is used for deactivating all the special bearers after receiving the CCA-U message, and replacing the original PCC rules on the default bearer with the PCC rules obtained by the standby PCRF.
In a fifth aspect, a session recovery system is provided, including:
the PCEF is used for sending a CCR-U message after determining that the session is required to be updated;
and the backup PCRF is used for reestablishing the session according to the CCR-U message and making a PCC policy decision.
With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the PCEF is specifically configured to: after determining that session updating is needed, sending a CCR-U message, wherein the CCR-U message comprises user information and an original PCC rule, and the original PCC rule is sent to a PCEF (policy and charging enforcement function) by a main PCRF (policy and charging rules function) in an IP-CAN (Internet protocol-connectivity access network) session initial establishment process or an IP-CAN session updating process;
the backup PCRF is specifically configured to: according to the user information, a session is reconstructed, and the original PCC rule is determined as the PCC rule obtained after the PCC policy decision; or obtaining the PCC rule according to the user information and the subscription information.
With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, when the PCC rule obtained by the standby PCRF is different from the original PCC rule, the standby PCRF is further configured to: and sending a credit control response updating CCA-U message to the PCEF, wherein the CCA-U message comprises the new PCC rule, so that the PCEF performs charging and policy control according to the new PCC rule.
With reference to the fifth aspect, in a third possible implementation manner of the fifth aspect, the PCEF is specifically configured to: after determining that the session needs to be updated, sending a CCR-U message, wherein the CCR-U message comprises user information;
the backup PCRF is specifically configured to: reestablishing a session according to the user message, obtaining a PCC rule according to the user information and the subscription information, and obtaining session recovery indication information according to configuration information, wherein the session recovery indication information is used for indicating the PCEF to maintain or modify an original bearer and a strategy; and sending a CCA-U message to the PCEF, wherein the CCA-U message comprises the session recovery indication information.
With reference to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, when the session recovery indication information is used to indicate the PCEF to modify an original bearer and a policy, the CCA-U message further includes a PCC rule obtained by the standby PCRF, and the PCEF is further configured to: and after receiving the CCA-U message, deactivating all special bearers, and replacing the original PCC rules on the default bearer by the PCC rules obtained by the standby PCRF.
According to the technical scheme, after the PCEF sends the CCR-U message to the standby PCRF, the standby PCRF rebuilds the session and carries out PCC policy decision according to the CCR-U message, the hot backup of the main PCRF to the standby PCRF is not needed in real time, the signaling interaction can be reduced, and the signaling processing capacity of the standby PCRF is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a flowchart illustrating a session recovery method according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a session recovery method according to another embodiment of the present invention;
FIG. 3 is a flowchart illustrating a session recovery method according to another embodiment of the present invention;
FIG. 4 is a flowchart illustrating a session recovery method according to another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a session recovery apparatus according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of another embodiment of a session recovery apparatus according to the present invention;
fig. 7 is a schematic structural diagram of a unified embodiment of the session recovery system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart illustrating a session recovery method according to an embodiment of the present invention, where an execution main body of the embodiment is a backup PCRF, and the embodiment includes:
101: a standby PCRF receives a Credit Control request update (CCR-U) message sent by a PCEF, wherein the CCR-U message is sent by the PCEF after the PCEF determines that a session needs to be updated;
102: and the standby PCRF reestablishes a session according to the CCR-U message and carries out PCC policy decision.
Accordingly, the flow executed by the PCEF is shown in fig. 2, and includes:
201: the PCEF determines that a session update is required;
202: and the PCEF sends a CCR-U message to the standby PCRF, so that the standby PCRF reestablishes a session according to the CCR-U message and carries out PCC policy decision.
The condition that the PCEF determines that the session update is required may be: and receiving an IP-CAN session updating request sent by an access network, or overtime an internal timer, and the like.
Optionally, the PCEF may include user information and an original PCC rule in a CCR-U message sent to the standby PCRF, and after receiving the CCR-U message, the standby PCRF may reestablish a session according to the user information, and determine the original PCC rule as a PCC rule after the standby PCRF performs a PCC policy decision, or the standby PCRF may also obtain the PCC rule according to the user information and subscription information, where the obtained PCC rule may be the same as or different from the original PCC rule. The original PCC rule may be sent by the primary PCRF to the PCEF during an initial establishment of an IP-Connectivity Access Network (IP-CAN) session, or the original PCC rule may be an updated PCC rule on the primary PCRF, that is, the primary PCRF may be sent to the PCEF during an update of an IP-CAN session. The session in the embodiment of the invention refers to an IP-CAN session.
Correspondingly, when the PCC rule obtained by the standby PCRF is the same as the original PCC rule sent by the PCEF, the standby PCRF may only send a response message, i.e., a CCA-U message, to the PCEF, where the CCA-U message may not carry the PCC rule, and the PCEF still uses the original PCC rule for charging and policy control when receiving the CCA-U message. When the PCC rule obtained by the standby PCRF is different from the original PCC rule sent by the PCEF, the CCA-U message sent by the standby PCRF to the PCEF may carry a new PCC rule, and then the PCEF performs charging and policy control according to the new PCC rule.
Optionally, the PCEF may also not send the original PCC rule to the standby PCRF, but the standby PCRF reconstructs the session according to the user information in the CCR-U message, performs a PCC policy decision according to the user information and the subscription information to obtain the PCC rule, and obtains the session recovery indication information according to the configuration information, where the PCC rule may be the same as or different from the original PCC rule of the PCEF, the subscription information may be configured locally on the PCRF or obtained from other devices, and the configuration information may be configured locally on the PCRF. The session recovery indication information is used to indicate a processing manner of the PCEF on the original bearer and the policy, for example, the original bearer and the policy are kept unchanged, or the policy of the dedicated bearer is deactivated and the default bearer is deactivated. For details, reference may be made to the following examples.
In this embodiment, after the PCEF sends the CCR-U message to the standby PCRF, the standby PCRF reconstructs a session and performs a PCC policy decision according to the CCR-U message, and the main PCRF does not need to perform hot backup on the standby PCRF in real time, so that signaling interaction can be reduced, and the signaling processing capability of the standby PCRF is improved.
Fig. 3 is a flowchart illustrating a session recovery method according to another embodiment of the present invention, including:
301: a link A between the PCEF and the PCRF A is activated and used;
302: a link B between the PCEF and the PCRF B is activated and standby;
303: the access network sends an IP-CAN session establishment request to the PCEF;
304: the PCEF sends a Credit Control Request Initial (CCR-I) message to the PCRF a, where the message carries user information.
305: and the PCRF A establishes a session and carries out PCC policy decision.
306: PCRF A sends a Credit Control Answer Initial (CCA-I) message to PCEF, wherein the CCA message comprises a PCC rule and a triggering event (event-Trigger) list;
307: the PCEF installs a PCC rule and monitors a trigger event;
the PCC rules in 306 and 307 may be initial PCC rules.
308: the PCEF sends an IP-CAN session establishment response to the access network;
to this end, the initial establishment of the IP-CAN session is completed, and the detailed contents of the above steps CAN refer to the prior art.
309: link a down between PCEF and PCRF a;
310: a link B between the PCEF and the PCRF B is kept activated and switched to be a main use;
311: the access network sends an IP-CAN session updating request to the PCEF;
312: the PCEF sends a CCR-U message to PCRF B, including user information and initial PCC rules.
Similar to the prior art, when the link on the primary PCRF fails, the primary link between the PCRF and the PCEF is switched to the standby PCRF. In the prior art, in order to ensure data consistency on the primary and secondary PCRFs, the PCRF a not only reports the initial PCC rule to the PCEF, but also sends the initial PCC rule to the secondary PCRF, that is, a real-time hot backup is required between the primary and secondary PCRFs.
Different from the prior art, the embodiment does not require real-time hot backup between the main and standby PCRF, that is, the PCRF a may only send the initial PCC rule to the PCEF and does not send it to the PCRF B. And when the IP-CAN session needs to be updated, the PCEF sends the initial PCC rules to the PCRF B.
313: and the PCRF B reestablishes the session and carries out PCC policy decision.
The PCRF B can judge whether to store the corresponding session information according to the user information in the CCR-U message, and if the corresponding session information does not exist, the session can be reestablished according to the user information. The specific principle of establishing the session may be the same as the principle of establishing the session by the PCRF a according to the user information in the CCR-I message.
The PCC policy decision by PCRF B may include: determining an initial PCC rule contained in the CCR-U message as a PCC rule on a PCRF B; or, the PCRF B performs a new PCC policy decision according to the user information and the subscription information to obtain a new PCC rule. The principle of the specific PCC policy decision may be the same as the principle of the PCC policy decision performed after the PCRF a receives the CCR-I message. In addition, as the PCRF B is in the update procedure, the user information carried in the CCR-U and the user information carried in the CCR-I may be different, the new PCC rule obtained by the PCRF B may be different from the initial PCC rule.
When the PCRF B adopts the initial PCC rule, it can be ensured that the policy information of the user is unchanged, so as to ensure that the service experience of the user is unchanged.
314: PCRF B sends a Credit Control Answer Update (CCA-U) message to PCEF.
Optionally, if the PCRF B determines to adopt the initial PCC rule after the PCC policy decision, the PCRF B may only feed back a CCA-U message to the PCEF, where the CCA-U message does not carry the PCC rule and is only used as a response message; after receiving the CCA-U message, the PCEF keeps the original bearer and policy unchanged, i.e., continues to use the initial PCC rule for charging and policy control. Or,
optionally, if the PCRF B determines a new PCC rule after the PCC policy decision, the PCRF B may send the new PCC rule to the PCEF, and the PCEF performs charging and policy control according to the new PCC rule.
315: the PCEF sends an IP-CAN session update response to the access network.
In this embodiment, the PCEF reports the initial PCC rule to the PCRF B as an example. It can be understood that Gx failover may also occur in a scenario where the PCC rule on the PCEF has been updated, instead of the initial PCC rule, for example, an update procedure has occurred between the PCEF and the PCRF a, then the PCC rule sent by the PCEF to the PCRF B in 312 is the updated PCC rule, that is, the original PCC rule of the PCEF, and then the PCC rule adopted by the PCRF B may be the original PCC rule or a new PCC rule obtained after a new PCC policy decision is made.
In this embodiment, the PCEF sends the initial PCC rule to the standby PCRF, so that session recovery on the standby PCRF can be implemented without requiring real-time hot backup of the main and standby PCRFs, thereby reducing signaling overhead.
Fig. 4 is a flowchart illustrating a session recovery method according to another embodiment of the present invention, including:
401: a link A between the PCEF and the PCRF A is activated and used;
402: a link B between the PCEF and the PCRF B is activated and standby;
403: the access network sends an IP-CAN session establishment request to the PCEF;
404: the PCEF sends a CCR-I message to the PCRF A, wherein the CCR-I message carries user information;
405: PCRF A establishes a session and carries out PCC policy decision;
406: PCRF A sends CCA-I to PCEF, including PCC rule and Trigger event (event-Trigger) list;
407: the PCEF installs a PCC rule and monitors a trigger event;
the PCC rules in 406 and 407 may be initial PCC rules.
408: the PCEF sends an IP-CAN session establishment response to the access network;
409: link a down between PCEF and PCRF a;
410: a link B between the PCEF and the PCRF is kept activated and switched to be a primary (link B active);
411: the access network sends an IP-CAN session updating request to the PCEF;
the specific contents of steps 401 to 411 can be referred to in steps 301 to 311, and are not described again.
412: the PCEF sends a CCR-U message to the PCRF B, wherein the CCR-U message comprises user information.
Different from the previous embodiment, the PCEF of this embodiment does not need to send the PCC rules to the PCRF B, but the decision is made by the PCRFB.
413: the PCRF B reestablishes the session and carries out PCC policy decision;
the PCRF B can judge whether to store the corresponding session information according to the user information in the CCR-U message, and if the corresponding session information does not exist, the session can be reestablished according to the user information. The specific principle of establishing the session may be the same as the principle of establishing the session by the PCRF a according to the user information in the CCR-I message.
The PCC policy decision by PCRF B may include: and carrying out new PCC strategy decision according to the user information and the subscription information to obtain a new PCC rule. The principle of the specific PCC policy decision may be the same as the principle of the PCC policy decision performed after the PCRF a receives the CCR-I message. In addition, as the PCRF B is in the update procedure, the user information carried in the CCR-U and the user information carried in the CCR-I may be different, the new PCC rule obtained by the PCRF B may be different from the initial PCC rule.
414: PCRF B sends CCA-U to PCEF, including conversation resumes the instruction information;
the session recovery indication information is used for indicating the processing mode of the original bearer and the policy.
For example, the values of the session recovery indication information may be as follows:
0: the PCEF keeps the original bearer and policy unchanged, at this time, the CCA-U message may only carry the session recovery indication information and does not carry the PCC rule, so as to indicate that the PCEF keeps the current bearer and the PCC rule of each bearer unchanged, for example, the PCEF performs charging and policy control by using the initial PCC rule.
1: the PCEF deactivates all the proprietary bearers and replaces the policy on the default bearer with the new PCC rules determined by PCRF B. At this time, the CCA-U message also needs to carry a new PCC rule obtained by PCRF B, and the new PCC rule is used to replace the current policy on the current default bearer, such as replacing the initial PCC rule. Secondary scene this scene can guarantee that the user does not drop because of keeping the default bearing.
It is understood that the original PCC rule on the PCEF may be the initial PCC rule described above, or may be an updated PCC rule.
In addition, depending on the system, the dedicated bearer may also be referred to as a secondary Packet Data Protocol (PDP), and the default bearer may also be referred to as a primary PDP.
415: the PCEF sends an IP-CAN session update response to the access network.
The backup PCRF of this embodiment reconstructs a session and a PCC policy decision after receiving the CCR-U message, and can implement session recovery on the backup PCRF without requiring real-time hot backup of the primary and backup PCRFs, thereby reducing signaling interaction and improving signaling processing capability of the backup PCRF.
Fig. 5 is a schematic structural diagram of a session recovery apparatus according to an embodiment of the present invention, where the apparatus may be a standby PCRF or be located in the standby PCRF, and the apparatus 50 includes a receiving module 51 and a processing module 52; the receiving module 51 is configured to receive a CCR-U message sent by a PCEF, where the CCR-U message is sent by the PCEF after determining that a session needs to be updated; the processing module 52 is configured to reconstruct a session according to the CCR-U message, and perform a PCC policy decision.
Optionally, the CCR-U message includes user information and an original PCC rule, where the original PCC rule is sent by the primary PCRF to the PCEF in an IP-CAN session initial establishment procedure or an IP-CAN session update procedure, and the processing module is specifically configured to:
determining the original PCC rule as a PCC rule obtained after PCC strategy decision; or,
and obtaining the PCC rule according to the user information and the subscription information.
Optionally, when the PCC rule obtained by the backup PCRF is different from the original PCC rule, the apparatus further includes:
a sending module, configured to send a CCA-U message to the PCEF, where the CCA-U message includes the new PCC rule, so that the PCEF performs charging and policy control according to the new PCC rule.
Optionally, the CCR-U message includes user information, and the processing module is specifically configured to: obtaining a PCC rule according to the user information and the subscription information, and obtaining session recovery indication information according to configuration information, wherein the session recovery indication information is used for indicating the PCEF to keep or modify the original bearer and the original strategy; the apparatus further comprises:
a sending module, configured to send a CCA-U message to the PCEF, where the CCA-U message includes the session recovery indication information.
Optionally, when the session recovery indication information is used to indicate that the PCEF modifies the original bearer and the policy, the sending module is specifically configured to:
and sending a CCA-U message to the PCEF, wherein the CCA-U message comprises the session recovery indication information and the PCC rules obtained by the standby PCRF, so that after the PCEF receives the CCA-U message, all the special bearers are deactivated, and the PCC rules obtained by the standby PCRF are used for replacing the original PCC rules on the default bearer.
In this embodiment, after the PCEF sends the CCR-U message to the standby PCRF, the standby PCRF reconstructs a session and performs a PCC policy decision according to the CCR-U message, and the main PCRF does not need to perform hot backup on the standby PCRF in real time, so that signaling interaction can be reduced, and the signaling processing capability of the standby PCRF is improved.
Fig. 6 is a schematic structural diagram of another embodiment of the session recovering device of the present invention, where the device may be a PCEF or be located in the PCEF, and the device 60 includes a determining module 61 and a sending module 62; the determining module 61 is configured to determine that a session update is required; the sending module 62 is configured to send a CCR-U message to the standby PCRF, so that the standby PCRF reconstructs a session according to the CCR-U message and performs a PCC policy decision.
Optionally, the apparatus further comprises:
the first receiving module is used for receiving the original PCC rules sent by the main PCRF in the initial establishment process of the IP-CAN session or the updating process of the IP-CAN session;
the sending module is specifically configured to: and sending a CCR-U message to a standby PCRF, wherein the CCR-U message comprises user information and the original PCC rule, so that the standby PCRF reconstructs a session according to the user information, determines the original PCC rule as the PCC rule after the PCC policy decision, or obtains the PCC rule according to the user information and subscription information.
Optionally, when the obtained PCC rule of the backup PCRF is different from the original PCC rule of the PCEF, the apparatus further includes:
and a second receiving module, configured to receive a CCA-U message sent by the standby PCRF, where the CCA-U message includes the PCC rule obtained by the standby PCRF, and perform charging and policy control according to the PCC rule obtained by the standby PCRF.
Optionally, the sending module is specifically configured to:
sending a CCR-U message to a standby PCRF, wherein the CCR-U message comprises user information, so that the standby PCRF rebuilds a session according to the user information, obtains a PCC rule according to the user information and subscription information, and obtains session recovery indication information according to configuration information, wherein the session recovery indication information is used for indicating the PCEF to keep or modify original load and strategies;
the apparatus further comprises:
and a third receiving module, configured to receive a CCA-U message sent by the standby PCRF, where the CCA-U message includes session recovery indication information.
Optionally, when the session recovery indication information is used to indicate that the PCEF modifies an original bearer and a policy, the CCA-U message further includes a PCC rule obtained by the standby PCRF, and the apparatus further includes:
and the processing module is used for deactivating all the special bearers after receiving the CCA-U message, and replacing the original PCC rules on the default bearer with the PCC rules obtained by the standby PCRF.
In this embodiment, after the PCEF sends the CCR-U message to the standby PCRF, the standby PCRF reconstructs a session and performs a PCC policy decision according to the CCR-U message, and the main PCRF does not need to perform hot backup on the standby PCRF in real time, so that signaling interaction can be reduced, and the signaling processing capability of the standby PCRF is improved.
Fig. 7 is a schematic structural diagram of a unified embodiment of a session recovery system according to the present invention, where the system 70 includes a PCEF 71 and a standby PCRF 72; the PCEF 71 is configured to send a CCR-U message after determining that a session update is required; and the standby PCRF 72 is used for reestablishing the session according to the CCR-U message and making a PCC policy decision.
Optionally, the PCEF is specifically configured to: after determining that session updating is needed, sending a CCR-U message, wherein the CCR-U message comprises user information and an original PCC rule, and the original PCC rule is sent to a PCEF (policy and charging enforcement function) by a main PCRF (policy and charging rules function) in an initial establishment process of an IP-CAN (Internet protocol-controller area network) session or an updating process of the IP-CAN session;
the backup PCRF is specifically configured to: reestablishing a session according to the user message, and determining the original PCC rule as the PCC rule obtained after the PCC policy decision; or obtaining the PCC rule according to the user information and the subscription information.
Optionally, when the PCC rule obtained by the standby PCRF is different from the original PCC rule, the standby PCRF is further configured to: and sending a CCA-U message to the PCEF, wherein the CCA-U message contains the new PCC rule, so that the PCEF performs charging and policy control according to the new PCC rule.
Optionally, the PCEF is specifically configured to: after receiving an IP-CAN session updating request sent by an access network, sending a CCR-U message, wherein the CCR-U message comprises user information;
the backup PCRF is specifically configured to: reestablishing a session according to the user message, obtaining a PCC rule according to the user information and the subscription information, and obtaining session recovery indication information according to configuration information, wherein the session recovery indication information is used for indicating the PCEF to maintain or modify an original bearer and a strategy; and sending a CCA-U message to the PCEF, wherein the CCA-U message comprises the session recovery indication information.
Optionally, when the session recovery indication information is used to indicate that the PCEF modifies an original bearer and a policy, the CCA-U message further includes a PCC rule obtained by the standby PCRF, and the PCEF is further configured to: and after receiving the CCA-U message, deactivating all special bearers, and replacing the original PCC rules on the default bearer by the PCC rules obtained by the standby PCRF.
In this embodiment, after the PCEF sends the CCR-U message to the standby PCRF, the standby PCRF reconstructs a session and performs a PCC policy decision according to the CCR-U message, and the main PCRF does not need to perform hot backup on the standby PCRF in real time, so that signaling interaction can be reduced, and the signaling processing capability of the standby PCRF is improved.
It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (10)

1. A method for session recovery, comprising:
a PCRF receives a credit control request update CCR-U message sent by a PCEF (policy and charging enforcement function) entity, wherein the CCR-U message is sent by the PCEF after the PCEF determines that a session needs to be updated;
the standby PCRF reestablishes a session according to the CCR-U message and carries out Policy and Charging Control (PCC) policy decision; the making a PCC decision comprises: obtaining session recovery indication information according to configuration information, wherein the session recovery indication information is used for indicating the PCEF to keep original bearers and policies or modify the original bearers and policies, and the modification of the original bearers and policies comprises the deactivation of all proprietary bearers;
and the standby PCRF sends a CCA-U message to the PCEF, wherein the CCA-U message contains the session recovery indication information.
2. The method of claim 1,
when the session recovery indication information is used for indicating the PCEF to modify the original bearer and the policy, the CCA-U message further includes a PCC rule obtained by the standby PCRF, so that after receiving the CCA-U message, the PCEF deactivates all the dedicated bearers and replaces the original PCC rule on the default bearer with the PCC rule obtained by the standby PCRF;
and the PCC rules obtained by the standby PCRF are the PCC rules obtained by the standby PCRF according to subscription information and user information contained in the CCR-U.
3. A method for session recovery, comprising:
a Policy and Charging Enforcement Function (PCEF) entity determines that session updating is needed;
the PCEF sends a credit control request to update a CCR-U message to a PCRF (policy and charging rules function) entity, so that the PCRF rebuilds a session according to the CCR-U message and carries out Policy and Charging Control (PCC) policy decision; the making a PCC decision comprises: obtaining session recovery indication information according to configuration information, wherein the session recovery indication information is used for indicating the PCEF to keep original bearers and policies or modify the original bearers and policies, and the modification of the original bearers and policies comprises the deactivation of all proprietary bearers;
and the PCEF receives a CCA-U message sent by the standby PCRF, wherein the CCA-U message contains session recovery indication information.
4. The method of claim 3, wherein when the session recovery indication information is used to indicate the PCEF to modify an original bearer and policy, the CCA-U message further includes a PCC rule obtained by the standby PCRF, and the method further includes:
and after receiving the CCA-U message, the PCEF deactivates all the special bearers and replaces the original PCC rules on the default bearer with the PCC rules obtained by the standby PCRF.
5. A session recovery device, comprising:
a receiving module, configured to receive a credit control request update CCR-U message sent by a policy and charging enforcement function entity, PCEF, where the CCR-U message is sent by the PCEF after determining that a session update is required;
the processing module is used for reconstructing a session according to the CCR-U message and updating a PCC strategy decision by a credit control request; the making a PCC decision comprises: obtaining session recovery indication information according to configuration information, wherein the session recovery indication information is used for indicating the PCEF to keep original bearers and policies or modify the original bearers and policies, and the modification of the original bearers and policies comprises the deactivation of all proprietary bearers; and
a sending module, configured to send a CCA-U message to the PCEF, where the CCA-U message includes the session recovery indication information.
6. The device according to claim 5, wherein, when the session recovery indication information is used to indicate that the PCEF modifies an original bearer and policy, the sending module is specifically configured to:
sending a CCA-U message to the PCEF, wherein the CCA-U message comprises the session recovery indication information and the obtained PCC rule, so that the PCEF deactivates all the special bearers after receiving the CCA-U message and replaces the original PCC rule on the default bearer with the obtained PCC rule.
7. A session recovery device, comprising:
the determining module is used for determining that session updating is needed;
a sending module, configured to send a credit control request to update a CCR-U message to a PCRF, so that the PCRF reconstructs a session according to the CCR-U message and performs a policy and charging control, PCC, policy decision; the making a PCC decision comprises: obtaining session recovery indication information according to configuration information, wherein the session recovery indication information is used for indicating the PCEF to keep original bearers and policies or modify the original bearers and policies, and the modification of the original bearers and policies comprises the deactivation of all proprietary bearers; and
and a fourth receiving module, configured to receive a CCA-U message sent by the standby PCRF, where the CCA-U message includes session recovery indication information.
8. The apparatus of claim 7, wherein when the session recovery indication information is used to indicate the PCEF to modify an original bearer and policy, the CCA-U message further includes a PCC rule obtained by the standby PCRF, and the apparatus further includes:
and the processing module is used for deactivating all the special bearers after receiving the CCA-U message, and replacing the original PCC rules on the default bearer with the PCC rules obtained by the standby PCRF.
9. A session recovery system, comprising:
the Policy and Charging Enforcement Function (PCEF) entity is used for sending a credit control request update CCR-U message after determining that the session is required to be updated;
a Policy and Charging Rules Function (PCRF) entity for reconstructing a session according to the CCR-U message and making a PCC policy decision; the making a PCC decision comprises: obtaining session recovery indication information according to configuration information, wherein the session recovery indication information is used for indicating the PCEF to keep original bearers and policies or modify the original bearers and policies, and the modification of the original bearers and policies comprises the deactivation of all proprietary bearers; and the CCA-U message is also used for sending a CCA-U message to the PCEF, and the CCA-U message contains the session recovery indication information.
10. The system of claim 9, wherein when the session recovery indication information is used to indicate that the PCEF modifies an original bearer and policy, the CCA-U message further includes a PCC rule obtained by the standby PCRF, and the PCEF is further configured to: and after receiving the CCA-U message, deactivating all special bearers, and replacing the original PCC rules on the default bearer by the PCC rules obtained by the standby PCRF.
CN201280002811.4A 2012-12-06 2012-12-06 Session restoration methods, equipment and system Active CN104041090B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811392511.7A CN109450655A (en) 2012-12-06 2012-12-06 Session restoration methods, equipment and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/086034 WO2014086020A1 (en) 2012-12-06 2012-12-06 Session recovery method, device and system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201811392511.7A Division CN109450655A (en) 2012-12-06 2012-12-06 Session restoration methods, equipment and system

Publications (2)

Publication Number Publication Date
CN104041090A CN104041090A (en) 2014-09-10
CN104041090B true CN104041090B (en) 2018-12-25

Family

ID=50882778

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201280002811.4A Active CN104041090B (en) 2012-12-06 2012-12-06 Session restoration methods, equipment and system
CN201811392511.7A Withdrawn CN109450655A (en) 2012-12-06 2012-12-06 Session restoration methods, equipment and system

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201811392511.7A Withdrawn CN109450655A (en) 2012-12-06 2012-12-06 Session restoration methods, equipment and system

Country Status (5)

Country Link
US (1) US20150271275A1 (en)
EP (1) EP2922317A4 (en)
JP (1) JP6114835B2 (en)
CN (2) CN104041090B (en)
WO (1) WO2014086020A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014187479A1 (en) * 2013-05-22 2014-11-27 Nokia Solutions And Networks Oy Mitigating backend signaling overload
CN109040991B (en) * 2017-06-12 2021-02-26 华为技术有限公司 Method and apparatus for wireless communication
CN110650026A (en) * 2018-06-26 2020-01-03 中国电信股份有限公司 Communication method, system, PGW and computer readable storage medium
CN110880981B (en) * 2018-09-06 2020-11-03 中兴通讯股份有限公司 Gx session exception handling method and device
US10999750B2 (en) * 2019-05-09 2021-05-04 T-Mobile Usa, Inc. Early Gx/Rx session failure detection and response

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090254494A1 (en) * 2007-07-24 2009-10-08 Yan Li Method, apparatus, and system for implementing policy and charging control
WO2012095697A1 (en) * 2011-01-10 2012-07-19 Telefonaktiebolaget L M Ericsson (Publ) Recovery of a system for policy control and charging, said system having a redundancy of policy and charging rules function
CN102612011A (en) * 2012-03-22 2012-07-25 中兴通讯股份有限公司 Method and system for switching charging control policies at real time

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1708423A1 (en) * 2005-03-29 2006-10-04 Matsushita Electric Industrial Co., Ltd. Inter-domain context transfer using context tranfer managers
CN101567793A (en) * 2008-04-25 2009-10-28 华为技术有限公司 Method, device and system for updating policy and charge control (PCC) rule
US8640188B2 (en) * 2010-01-04 2014-01-28 Tekelec, Inc. Methods, systems, and computer readable media for providing group policy configuration in a communications network using a fake user
CN101677437B (en) * 2008-09-18 2012-02-29 华为技术有限公司 Method and system for implementing strategy and charge control under scene of multi-grouping data network
WO2011107813A1 (en) * 2010-03-02 2011-09-09 Telefonaktiebolaget Lm Ericsson (Publ) High-available policy and charging-control in geographical redundancy pcrf configurations
WO2011127974A1 (en) * 2010-04-14 2011-10-20 Telefonaktiebolaget Lm Ericsson (Publ) Handling of policy and charging information and user profiles in a multisite communication's network
RU2609065C2 (en) * 2010-09-17 2017-01-30 Телефонактиеболагет Л М Эрикссон (Пабл) Method and apparatus for policy control for current pdn connections in network comprising gateway, access function and policy and charging rules function
WO2012063106A1 (en) * 2010-11-12 2012-05-18 Telefonaktiebolaget L M Ericsson (Publ) Installation and enforcement of dynamic and static pcc rules in tunneling scenarios
US9106769B2 (en) * 2011-08-10 2015-08-11 Tekelec, Inc. Methods, systems, and computer readable media for congestion management in a diameter signaling network
US9735971B2 (en) * 2012-09-17 2017-08-15 Telefonaktiebolaget Lm Ericsson (Publ) High-availability, scalable policy and charging control systems, and methods therefor
CN102932769B (en) * 2012-11-26 2015-11-25 华为技术有限公司 Policy control method, entity and system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090254494A1 (en) * 2007-07-24 2009-10-08 Yan Li Method, apparatus, and system for implementing policy and charging control
WO2012095697A1 (en) * 2011-01-10 2012-07-19 Telefonaktiebolaget L M Ericsson (Publ) Recovery of a system for policy control and charging, said system having a redundancy of policy and charging rules function
CN102612011A (en) * 2012-03-22 2012-07-25 中兴通讯股份有限公司 Method and system for switching charging control policies at real time

Also Published As

Publication number Publication date
WO2014086020A1 (en) 2014-06-12
US20150271275A1 (en) 2015-09-24
JP6114835B2 (en) 2017-04-12
EP2922317A4 (en) 2015-11-11
JP2016502356A (en) 2016-01-21
CN109450655A (en) 2019-03-08
CN104041090A (en) 2014-09-10
EP2922317A1 (en) 2015-09-23

Similar Documents

Publication Publication Date Title
EP2543159B1 (en) High-available policy and charging-control in geographical redundancy pcrf configurations
US10425539B2 (en) Charging method, network device, and billing system
US8885568B2 (en) Policy application method for machine type communication, and policy and charging enforcement function
CN103583063B (en) System and method for the fault recovery of geographic redundancy gateway
Taleb et al. On service resilience in cloud-native 5G mobile systems
US11316708B2 (en) Gx session recovery for policy and charging rules function
CN104041090B (en) Session restoration methods, equipment and system
EP2896156B1 (en) High-availability, scalable policy and charging control systems, and methods therefor
CN101651608B (en) Link management method, corresponding management entity, execution node and mobile communication system
US9172776B2 (en) PCC control at PCRF failure
CN105578526B (en) Network switching control method and system
WO2011099523A1 (en) Pcrf, fault recovery method, and system
CN105163345B (en) A kind of method and system of area reporting
CN105939527A (en) Congestion mitigation for roamers
CN102932769B (en) Policy control method, entity and system
CN104320800A (en) Re-registering method and device for terminal
US20170099221A1 (en) Service packet distribution method and apparatus
CN105451253B (en) A kind of policy control method and device, DRA, P-CSCF
WO2013189185A1 (en) Disaster recovery switching method, device and system
US20200374671A1 (en) Rule Management Method And Device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant